Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Charleston, TN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
423-219 A CHTGTNNSXEY  114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 472      
423-219 0   073H TELNYX LLC 472   2021-01-17   
423-219 1   073H TELNYX LLC 472   2022-09-05   
423-219 2   525E ONVOY, LLC - TN 472   2021-07-11   
423-219 3   525E ONVOY, LLC - TN 472   2021-07-11   
423-219 4   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-07-28   
423-219 5   124F BANDWIDTH.COM CLEC, LLC - TN 472   2021-12-09   
423-219 6   114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 472   2019-11-08   
423-219 7   114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 472   2019-11-08   
423-219 8   939H COMMIO, LLC 472   2022-11-21   
423-219 9   073H TELNYX LLC 472   2021-12-02   
423-336 A CHTNTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-665 A CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472      
423-665 0   516C AT&T CORP. 472   2010-03-24   
423-665 1   829J PAETEC ITEL, LLC 472   2005-03-12   
423-665 2   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-10-20   
423-665 3   792K CHARTER IP ENABLED SERVICES, LLC 472   2006-06-03   
423-665 4   4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2004-12-20   
423-665 5   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-09-18   
423-665 6   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-10-03   
423-665 7   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-12-15   
423-665 8   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-12-23   
423-665 9   124F BANDWIDTH.COM CLEC, LLC - TN 472   2008-11-28   
423-780 A CHTNTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-780 0   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-780 1   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-780 2   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-780 3   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-780 4   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-780 5   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-780 6   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-08-04   
423-780 7   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-780 8   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-780 9   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-810 A CHTGTNNSXEY  114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 472      
423-810 0   525E ONVOY, LLC - TN 472   2016-04-06   
423-810 1   525E ONVOY, LLC - TN 472   2016-04-06   
423-810 2   4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472   2020-02-24   
423-810 3   204G TWIN LAKES COMMUNICATIONS, INC. - TN 472   2022-12-30   
423-810 4   073H TELNYX LLC 472   2023-01-27   
423-810 5   525E ONVOY, LLC - TN 472   2023-08-11   
423-810 6   114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 472   2015-10-01   
423-810 7   525E ONVOY, LLC - TN 472   2023-08-11   
423-810 8   525E ONVOY, LLC - TN 472   2019-04-26   
423-810 9   525E ONVOY, LLC - TN 472   2019-04-26   
423-829 A CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-829 0   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-829 1   124F BANDWIDTH.COM CLEC, LLC - TN 472   2014-07-12   
423-829 2   4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2012-02-26   
423-829 3   829J PAETEC ITEL, LLC 472   2004-09-06   
423-829 4   7473 POWERTEL ATLANTA LICENSES, INC. 472   2003-06-01   
423-829 5   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-829 6   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-829 7   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-829 8   7473 POWERTEL ATLANTA LICENSES, INC. 472   2023-12-11   
423-829 9   624H ONVOY SPECTRUM, LLC 472   2023-06-17   
423-898 A CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-898 0   7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-03-13   
423-898 1   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-04-14   
423-898 2   490J DISH WIRELESS, LLC 472   2024-03-22   
423-898 3   7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-03-13   
423-898 4   7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-05-03   
423-898 5   7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-05-03   
423-898 6   7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-05-03   
423-898 7   7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-01-24   
423-898 8   7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-01-24   
423-898 9   7473 POWERTEL ATLANTA LICENSES, INC. 472   2023-12-03   
423-951 A CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-07-21   
423-951 0   7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-09-18   
423-951 1   7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-09-18   
423-951 2   7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-09-18   
423-951 3   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-04-26   
423-951 4   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-05-29   
423-951 5   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-06-08   
423-951 6   7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-09-28   
423-951 7   7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-07-21   
423-951 8   7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-07-21   
423-951 9   7473 POWERTEL ATLANTA LICENSES, INC. 472   2024-07-21   
423-996 A   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-11-22   
423-996 0   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-12-20   
423-996 1   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-12-20   
423-996 2   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-12-20   
423-996 3   7473 POWERTEL ATLANTA LICENSES, INC. 472   2026-02-22   
423-996 6   145J TERRA NOVA TELECOM INC. 472   2025-11-24   
423-996 9   7473 POWERTEL ATLANTA LICENSES, INC. 472   2025-11-22   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.